Qualitative and quantitative chromatographic methods for analysis of glycerol tert-butylation reaction product

Abstract

This study examined the glycerol tert-butylation reaction products by chromatography. Qualitative analysis by TLC and GC-MS were effective, especially because di-tert-butylglycerols (DTBG) and tri-tert-butylglycerol (TTBG) are not available commercially. In all mass spectra, the GTBE showed ions at m/z 57 and 117, relative to ions of groups tert-butyl [C4H9] + and tert-butoxy-methyl [M-CH3OC(CH3) 3]+, respectively. The GC-FID method was efficient in the separation of the compounds under study, and had good linearity (R 2≥0.997), throughout the interval of 0.60 to 15.0mg.mL-1, 0.24 to 6.0mg.mL-1 and 0.03 to 1.0mg.mL-1 diisobutylene, glycerin and MTBE, respectively.